123results about How to "Precise position control" patented technology

The utility model discloses a kind of surface texture etching devices of welcome pedal, including chassis, two groups of side plates are fixedly connected in the chassis inner side wall, first sliding rod is fixedly connected between side plate, first screw rod is rotatably connected between side plate, first screw rod surface is threadedly connected with screw sleeve A, screw sleeve A surface is fixedly connected with first mobile element, first mobile element side wall is fixedly connected with groove plate, second sliding rod is fixedly connected in groove plate inner side wall, second screw rod is rotatably connected in groove plate inner side wall, second screw rod surface is threadedly connected with screw sleeve B, screw sleeve B surface is fixedly connected with second mobile element, groove plate side wall is slidably connected with etching laser group;The utility model can realize the linkage of etching laser group in XYZ three axes, positioning accuracy, the position and moving path of etching laser group can be flexibly changed, different shape and complex degree of texture etching demand can be adapted, different sizes of welcome pedal can also be conveniently processed.

This invention relates to the field of printing equipment technology, specifically to a method for printing 3D effect patterns based on multi-color overlay, comprising the following steps: S1, placing the workpiece to be printed on a base; S2, aligning the screen with the base, and printing ink onto the workpiece using a squeegee; S3, replacing the screen, and printing again using the squeegee, with multiple overlapping prints creating a 3D effect pattern on the workpiece surface; the screen mentioned in step S2 includes a frame and a mesh fabric. The frame includes two support rods and four telescopic rods. The two support rods are arranged in parallel, and the telescopic rods include a main rod and a secondary rod, with the main rod and secondary rod slidingly engaged; the four telescopic rods are interconnected to form a rectangular frame, with two telescopic rods respectively positioned on the two support rods, and a first magnetic block on each of the main rod and secondary rods. This invention solves the problem of printing quality being affected by screen deformation through the frame, mesh fabric, and adjustment mechanism.

The invention relates to the technical field of thermal interface material defect detection, in particular to a nondestructive detection method and system for thermal interface material application defects, and the system comprises an electric displacement table, heating laser, detection laser, a photoelectric detector, an acoustic optical modulator, a lock-in amplifier, an optical element and a data processing unit; the electric displacement table is used for fixing a sample and accurately controlling the position of the sample; the sample is of a silicon-thermal interface material-substrate sandwich structure; the upper-layer silicon wafer of the sample is plated with a metal film as a transduction layer; the heating laser is used for heating the sample; the acoustic optical modulator is used for modulating the heating laser, so that the heating laser heats the sample in a sine wave form; the detection laser is used for detecting sample temperature fluctuation; the photoelectric detector is used for collecting and detecting laser reflection signals; the lock-in amplifier is used for extracting and detecting laser phase and amplitude signals. According to the invention, non-destructive rapid detection of the defects of the thermal interface material in an application scene can be realized.

The utility model relates to the field of drilling positioning equipment, and discloses a motor casing machining drilling positioning device which comprises a machining table, electric telescopic rods are fixedly installed at the left end and the right end of the upper surface of the machining table, a scale strip is fixedly installed at the front end of the upper surface of the machining table, and positioning assemblies are arranged at the telescopic ends of the electric telescopic rods. An auxiliary assembly is arranged on the front surface of the positioning assembly, the positioning assembly comprises a positioning block, and a sliding rail is arranged on the upper surface of the positioning block. According to the utility model, through mutual cooperation of parts in the positioning assembly, accurate positioning of the equipment in three directions of the positioning clamp in the space is realized, and the expansion design of the air bag enables the positioning clamp to adapt to various motor shells with irregular outer walls, so that the universality and positioning precision of the equipment to motor shells with different specifications are greatly improved; and displacement or vibration of the motor shell in the drilling process is prevented, so that the drilling precision and quality are guaranteed.

The present application relates to the field of workpiece maintenance, especially to a kind of maintenance lifting section automatic device.The maintenance lifting section automatic device includes upper beam, maintenance lifting beam, pressure disc and drive structure, the bottom end of upper beam is equipped with lower beam, lower beam is slidably connected with base, one side of upper beam and lower beam is equipped with support frame, maintenance lifting beam is installed in one side of lower beam, screw rod is rotatably connected between support frame, limit rod is fixedly connected between support frame, maintenance lifting beam is screw-connected with screw rod, maintenance lifting beam is slidably connected with limit rod, and rotatable pressure disc is symmetrically arranged on both sides of lower beam.The present application realizes automatic lifting and sliding adjustment in the process of workpiece maintenance by integrating automation components such as drive structure, screw rod and limit rod, significantly reduces manual intervention, and improves the automation level of maintenance operation.This not only reduces labor cost, but also improves maintenance efficiency and shortens maintenance cycle.

The utility model relates to the technical field of winch lifting devices, and discloses a safety type double-output winch lifting device which comprises a bottom plate, a plurality of fixing plates are fixedly connected to the side face of the bottom plate, first shells are fixedly connected to the side faces of the two fixing plates, and driving assemblies are arranged on the inner sides of the two first shells. Second shells are fixedly connected to the side faces of the other two fixing plates, clamping assemblies are arranged on the inner sides of the second shells, a plurality of supporting plates are fixedly connected to the side face of the bottom plate, and reciprocating limiting assemblies are arranged on the side faces of the two supporting plates. According to the rope limiting device, the sliding groove lead screw is matched with the limiting rod, the limiting block can move in the direction of the limiting rod, the clamping block moves on the surface of the sliding groove lead screw along with the limiting block, meanwhile, height adjustment of the limiting ring is achieved through the hole shell and the hole plate through the fixing bolt, and therefore the rope is accurately limited. The position of the clamping block on the sliding groove lead screw can be accurately controlled through a groove in the surface of the sliding groove lead screw.

The utility model provides a kind of floating object removing equipment for sewage treatment, including grating conveyor, one end of the grating conveyor is provided with bottom backing plate, the other end of the grating conveyor is equipped with two mutually symmetrical conveyor end plate, transmission roller is rotatably installed on the bottom backing plate, the grating belt of the grating conveyor is driven and wound on the surface of transmission roller, the both ends of the bottom backing plate are respectively fixedly connected with height-adjusting plate;The utility model can flexibly adjust the height and angle of the device according to actual demand by setting through the cooperation of height-adjusting plate and mounting guide rail plate, so as to adapt to different sewage treatment scenarios.In addition, the design of positioning screw further enhances the stability of the device, keeps accurate position control during the sliding process of the extension slide, avoids the deviation problem caused by vibration or external force, and improves the flexibility of the equipment.

The spider robot capable of picking up the objects comprises a supporting seat, mechanical arms used for picking up the objects are arranged on the periphery of the supporting seat, the mechanical arms comprise the first mechanical arm, the second mechanical arm and the third mechanical arm, and the third mechanical arm is arranged between the first mechanical arm and the supporting seat. The moving function and the clamping function are integrated on the robot, so that the overall structure of the robot is more compact, complex moving mechanisms and clamping mechanisms do not need to be independently arranged, the number of parts is reduced, the overall size is reduced, more flexible shuttling and operation can be achieved in the limited space environment, the space utilization rate is effectively increased, and the cost is reduced. In the process that the mechanical arm drives the machine body to move, the position and the posture of the mechanical arm can be accurately controlled through movable connection of all components of the mechanical arm, high-precision clamping action is achieved through flexible joints of the mechanical arm and the mechanical arm body carried at the tail end of the mechanical arm, and it is guaranteed that the robot is smoother and more efficient when executing tasks.

This utility model discloses a movable base for a lifting platform, relating to the field of lifting platform mobility technology. It includes a base with a support frame movably connected to one side, a tire fixedly connected to the bottom of the base, and a support assembly at the bottom of the base. The support frame includes a connecting block, one side of which is fixed to one side of the base. Upon activation of the support frame, the support frame drives a transmission rod to move within the connecting block, thereby causing a limiter and a fixed column to move synchronously. At this time, the adjusting screw rotates, and using a threaded structure, the fixed column drives the adjusting column to move up and down along its inner wall. The adjusting column then drives the support base plate to move downwards, causing the support base plate to tightly press against the ground and achieve stable fixation. This process, through mechanical linkage and threaded adjustment, precisely controls the position and pressure of the support base plate, providing reliable support for the overall equipment, effectively enhancing equipment stability, reducing the risk of shaking and displacement, and ensuring normal equipment operation.

The utility model relates to the technical field of welding equipment, in particular to a welding device facilitating intelligent feeding, which comprises a conveying body and a discharging table, a support frame is fixedly connected to the lower surface of the conveying body, a gear transmission box is fixedly connected to one side of the lower surface of the conveying body, and a driving motor is fixedly connected to one side of the gear transmission box. An adjusting column is fixedly connected to the lower surface of the discharging table, a fixing block is fixedly connected to the lower surface of the adjusting column, and a mounting mechanism and a feeding mechanism are arranged on the upper surface of the discharging table. A mounting mechanism is composed of first mounting frames, fixing rods, second mounting frames and a transverse plate, the first mounting frames are arranged on the left side and the right side of the upper surface of the discharging table and connected with the second mounting frames through the fixing rods, and one sides of the second mounting frames are fixedly connected with the transverse plate. The feeding mechanism has the advantages that a stable and reliable installation foundation is provided for the feeding mechanism, it is guaranteed that the feeding mechanism does not shake or move in the operation process, and therefore the stability and accuracy of the whole feeding process are guaranteed.

The utility model discloses automatic feeding equipment of a laser cutting machine, which belongs to the technical field of automation and comprises a machine table, a group of transplanting module mechanisms and a manipulator mechanism. Module transplanting mechanisms and a manipulator mechanism are arranged on the machine table, and the module transplanting mechanisms are arranged on the two sides of the manipulator mechanism correspondingly. The output end of the manipulator mechanism is provided with the material taking mechanism; a product is placed on the transplanting module mechanism; an organ cover is correspondingly arranged on one side of the transplanting module mechanism; an emergency stop button is arranged on the machine table; and the transplanting module mechanism and the manipulator mechanism are arranged in the machine cover. The transplanting module mechanism and the mechanical arm mechanism are matched for feeding, automatic feeding can be achieved, the manual intervention time is shortened, multi-station feeding is arranged, and the production continuity and efficiency are improved.

The utility model discloses a numerical control processing automatic line, including frame, portal frame, feed conveyor, waste conveyor, conveying line, take material mechanism, three -axis positioning mechanism, processing mechanism and conveying jig, conveying line and waste conveyor are in parallel set up in the frame, and the waste conveyor is located one side of conveying line, and conveying jig transmission is in conveying line, and three -axis positioning mechanism and processing mechanism are installed in the portal frame, and take material mechanism is installed in three -axis positioning mechanism and realizes three -dimensional motion through three -axis positioning mechanism, and conveying jig includes workstation, and a plurality of discharge chute are seted up in the workstation, and the discharge port of a plurality of discharge chute is located above the waste conveyor, and the workstation is installed with sectional material frame, and a plurality of fastening jigs are installed on sectional material frame, and a plurality of fastening jigs are fixed to the sample of processing. The numerical control processing automatic line through the cooperation of each component operation, realize material automation conveying, accurate positioning and efficient processing, effectively improve production efficiency and processing accuracy, reduce the artificial cost.

This utility model discloses a vacuum nozzle device with pressure detection, including a vacuum nozzle, a push rod, an elastic element, a pressure sensor, a mounting base, and a drive mechanism. The output end of the drive mechanism is connected to the mounting base. The pressure sensor and the elastic element are disposed on the mounting base. Both ends of the elastic element elastically abut against the pressure sensor and one end of the push rod, respectively. The other end of the push rod is connected to the vacuum nozzle. This utility model's vacuum nozzle device with pressure detection can monitor pressure values ​​accurately and instantly, automatically adjust the pressure, effectively extend service life, reduce setup time, and improve production efficiency.

The utility model discloses injection molding machine waste gas collecting device, including main body frame, shaking mechanism, flow regulating mechanism and adjusting auxiliary mechanism, the shaking mechanism includes processing jar, drive motor, support axle, connecting hose and adding pipe, the flow regulating mechanism includes adjusting pipe, inner rotary frame, threaded rod, thread bush, moving frame, layer whirlpool board and inner fixed frame, make processing jar do regular shaking movement through drive motor drive support axle, effectively solved the problem of uneven distribution of waste gas in traditional device, and this dynamic shaking design promotes the full mixing contact of waste gas and auxiliary agent, eliminates the airflow dead angle and stratification phenomenon in processing jar, adopts the accurate transmission design of threaded rod and thread bush, drives moving frame to do linear motion through the rotation of inner rotary frame, makes the clearance between layer whirlpool board and inner fixed frame accurate and adjustable, and this design solves the problem that the waste gas flow of traditional device is difficult to accurately regulate.

The utility model provides a cold bed guiding device relates to guiding device technical field, including guiding platform and frame base plate, guiding platform installs on frame base plate, the guiding platform is by floating base, quick detachable interface mechanism and guide plate is composed, the both sides long side symmetry of guiding platform is installed with frame base plate, is provided with the support plate on the symmetry plane of two frame base plate, floating base installs on the support plate, the disc spring group and micro -hydraulic cylinder are integrated in floating base, can dynamically absorb the impact vibration when steel billet moves and sends, avoid the deviation of guiding caused by rigid collision, ensure the moving track stability of work piece, and through the adjusting screw rod of penetrating frame base plate and floating base, can accurate control the overall position of guiding platform, compensate installation error or thermal deformation influence, significantly improve the machining precision of subsequent procedure.

The utility model relates to dumbbell piece packaging technical field, and disclose a kind of dumbbell piece packaging equipment, including workbench, the both sides of the top of workbench are fixedly installed with support rod, center positioning column is fixedly installed in rotating tray, the top of workbench is fixedly installed with backing plate, the top of backing plate is fixedly installed with fixed plate, telescopic cylinder two is fixedly installed in the fixed plate, the front end of telescopic cylinder two is fixedly installed with fixed seat, slide rail is set in the fixed seat, slide block is slidably installed on the slide rail, the outside of threaded rod is installed with push wheel. This dumbbell piece packaging equipment, dumbbell piece packaging equipment can realize automatic operation, equipment can accurately cut film to appropriate size, ensure that dumbbell piece is completely wrapped, and the sealing of film can be closely fitted, so that the packaging effect of each product can keep basically same, which helps to improve the overall image of product.

The utility model discloses a kind of mould surface wear-resistant coating quick spraying equipment, including support, spraying mechanism and drying mechanism;Support: it is stainless steel support;Spraying mechanism: it is set on the right side upper surface of support;Drying mechanism: it includes drying cabinet, fan and electric heating pipe, the drying cabinet is set on the left side upper surface of support, fan is respectively set in the mounting hole of left side surface of drying cabinet evenly opened, electric heating pipe is respectively set in the inside of drying cabinet, the air outlet of fan is respectively and electric heating pipe corresponding arrangement;It also includes control switch group, the control switch group is set on the left side upper surface of support, the input end of fan and electric heating pipe is electrically connected the output end of control switch group, the input end of control switch group is electrically connected external power supply, this mould surface wear-resistant coating quick spraying equipment, can be suitable for different size mould, can accurately control nozzle, quick automatic spraying saves manpower and material resources, and the scope of application is wide.

This invention discloses a rotary jet suction dredging device, comprising a floating platform on which a vacuum jet pump connected to a drive mechanism and a guide mechanism is mounted; the drive mechanism includes two mutually perpendicular hydraulic telescopic rods, one end of which is hinged to the floating platform, and the other end of which is connected to the side wall of the vacuum jet pump via a universal joint; the guide mechanism includes inner and outer guide sleeves fitted around the vacuum jet pump, the inner guide sleeve and the vacuum jet pump being connected via coaxial left and right rotating shafts, and a coaxial front and rear rotating shaft passing through the outer guide sleeve, one end of which is connected to the inner guide sleeve, and the other end of which is connected to the floating platform, with the front and rear rotating shafts perpendicular to the left and right rotating shafts; the outer guide sleeve is provided with front and rear clearance grooves to accommodate the passage of the inner guide sleeve; the vacuum jet pump is connected to a suction head, a high-pressure air supply pipe, and a sludge conveying pipe. This invention achieves dredging needs covering all water depths from shallow to deep water, with high dredging efficiency and safe and simple operation.

The application discloses an air fryer, which comprises a cooking cavity and a fan for sending air into the cooking cavity, the cooking cavity is provided with an exhaust port communicated with the outside atmosphere, and the air fryer further comprises a motor, a one-way driving assembly and an air outlet adjusting device arranged at the exhaust port, the motor is connected with the fan and the one-way driving assembly through a motor shaft; when the motor drives the fan to rotate forward, the one-way driving assembly does not drive the air outlet adjusting device to move, when the motor drives the fan to rotate reversely, the one-way driving assembly drives the air outlet adjusting device to move so as to adjust the air outlet amount at the exhaust port. In the application, the fan for sending air into the cooking cavity and the one-way driving assembly for driving the air outlet adjusting device to move share one motor, the number of motors is reduced, the cost is lowered, the structure is more compact, the internal layout is more reasonable, and the miniaturization of the air fryer is facilitated.

The utility model belongs to powder metallurgy technical field provides a kind of rare earth permanent magnetic powder forming device of vertical orientation horizontal pressing, solve the problem that cannot be automatically pressed into shape annulus, pie, radial orientation cylinder, block, tile and so on, device includes automatic weighing cloth mechanism, three electrocylinder magnetic field pressing mechanism, pressing blank stripping mechanism and three-station mould carousel mechanism, the mechanism is placed in sealed cabin uniformly, and there is a set of integrated control system to realize equipment linkage and control;The utility model can accurately control output torque and positioning position, realizes complex pressing action and stripping action, to realize a series of special forming products such as automatic pressing annulus, pie, radial orientation cylinder, block, tile, reduce magnetic declination, improve the performance of rare earth permanent magnetic material finished product.

The invention relates to the technical field of vehicle intelligent driving and intelligent chassis testing, and discloses a method and device for testing the fusion function of intelligent driving and intelligent chassis, and the device comprises an equipment trigger, an air bag assembly, an air bag housing, an air bag cover plate, an inflation hose, an air storage tank, and a miniature air compressor. The air bag assembly is arranged in the air bag shell in a foldable mode and connected with an inflation switch valve of the air storage tank through an inflation hose, the miniature air compressor inflates the air storage tank, and the air pressure is monitored through the pressure gauge. The equipment trigger detects a vehicle and sends a trigger signal, and obstacle spraying cloth of the air bag assembly is detachably connected with an air bag. According to the scheme, an obstacle suddenly appears from a hidden state through transient inflation, a sudden dangerous scene is simulated, multiple sensors of a vehicle can be cheated, multiple trigger modes are supported, different obstacles can be flexibly simulated, high-reality, high-repeatability and safe testing can be achieved, and the minimum loss decision-making capacity of the vehicle can be verified.

The utility model relates to the related technical field of rack adjusting pressing block cooling mechanisms, and one embodiment of the utility model provides a rack adjusting pressing block cooling mechanism which comprises a frame body, a bottom frame and a shell, the bottom frame is fixed outside the frame body, the shell is arranged in the frame body, a cooling assembly is arranged in the shell, a first conveying belt is arranged in the frame body, and a second conveying belt is arranged in the frame body. The first conveying belt penetrates through the interior of the shell, the conveying positioning assembly is arranged on the frame body, the discharging assembly is arranged outside the frame body, the cooling assembly comprises an inner cover, the inner cover is arranged in the shell, a cavity is formed in the top of the inner cover, a water inlet pipeline is arranged at the top of the inner cover and extends to the exterior of the shell, and spraying holes are formed in the bottom in the cavity. By means of the technical scheme, the technical problems that in the prior art, due to the fact that discharging is not smooth, the pressing blocks are prone to being stacked near the discharging opening, and the stacked pressing blocks are squeezed mutually, and deformation can be possibly caused are solved.

The present application relates to the technical field of photovoltaic equipment, and particularly relates to a photovoltaic module waterless cleaning device and system thereof, which comprises a mounting plate frame and photovoltaic panels uniformly mounted on the top of the mounting plate frame, and further comprises a waterless cleaning device arranged on the mounting plate frame, wherein the waterless cleaning device comprises: a smart driving assembly comprising a mounting frame, a controller, a double-shaft motor and a reciprocating conveying mechanism; and a waterless cleaning assembly comprising a mounting roller, a dust thickness detection mechanism, a pressurized air blowing mechanism, a hot spot detection mechanism and a marking mechanism. The present application has a reasonable structure, and the waterless cleaning device is ingeniously driven by the self-generated power of the photovoltaic panels. Through the advanced pressurized air blowing technology, the traditional mechanical water washing and manual wiping methods are efficiently and safely replaced, and the waterless and efficient cleaning of the photovoltaic module is realized. This design not only significantly improves the power generation efficiency of the photovoltaic power station, effectively prolongs the service life of the photovoltaic module, but also greatly reduces the cost and time input of the cleaning operation.

The utility model discloses a numerical control bending device for an environment-friendly ventilating duct, which relates to the technical field of environment-friendly ventilating ducts and comprises a housing, supporting legs, a sliding chute, a motor, a lead screw, a first bearing, a movable plate, a fixed seat, a clamping sleeve, a guide rod, a limiting block, a second bearing, a screw rod, a hand wheel, a mounting platform, a reinforcing rib, a bending component and the like. The servo motor is adopted to drive the lead screw, the rotating angle and speed of the lead screw can be accurately controlled, and then the moving distance and speed of the moving plate are accurately controlled. In this way, in the bending process of the ventilation pipeline, control over the bending position and angle is more accurate, the problem that it is difficult for traditional manual bending or simple mechanical bending equipment to guarantee the consistency of the bending precision is effectively solved, the bending quality of the ventilation pipeline is greatly improved, it is guaranteed that the product is tightly connected and good in sealing performance when installed and used, and the product quality is improved. The overall performance of the ventilation system is improved.

The cutting device comprises a machining box, a machining opening is formed in the front face of the machining box, and a longitudinal electric sliding rail is fixedly connected to the top of the inner wall of the machining opening. Through cooperation of the machining box, the longitudinal electric sliding rail, the transverse electric sliding rail, the electric telescopic rod, the cutter and the supporting plate, the position and the moving track of the cutter can be accurately controlled, parts can be cut and machined at different positions, and then through cooperation of the water tank, the water suction pump, the flow divider, the telescopic pipe and the water spraying head, the machining efficiency is improved. According to the cutting device, the cutting fluid cools and lubricates a cutter and parts, then flows into the filter box through the through holes of the supporting plate and the flow guide plate, is filtered by the filter screen and the filter cloth in the filter drawer and then returns to the water tank again, so that cyclic utilization of the cutting fluid is realized, resources are saved, and pollution to the environment is reduced.

The utility model belongs to the field of oiling, provide a kind of gear reducing unit processing oiling equipment, including fixed base, oil delivery assembly, rotating mechanism and alignment subassembly, the four corners of fixed base top are all provided with support, and the top between four groups of support is provided with oil tank, the bottom of oil tank is provided with oil delivery assembly and the rotating mechanism of driving oil delivery assembly rotation, and oil delivery assembly has the adjusting mechanism of adjustable oil delivery range, and fixed base is provided with the alignment subassembly for calibrating the placement position of gear reducing unit;The utility model is provided with oil delivery assembly by adjusting mechanism, accurately controls the oil outlet position and range of lower oil pipe, can flexibly adapt the oiling range of different size spare parts, avoid the limitation of traditional fixed equipment, and rotating oiling mechanism utilizes motor drive gear transmission, so that oil is evenly coated to critical position, significantly improves coating uniformity and lubricating effect, improves oiling efficiency.

The utility model relates to the field of electronic component processing, in particular to an electronic component pin bending device. The electronic component pin bending device comprises a support, a limiting frame, guide blocks and the like, the support is located on the lowermost layer and serves as a support of the whole device, the limiting frame is fixedly connected to the top of the support, the middle of the limiting frame is designed to be hollow, and the two guide blocks of different sizes are oppositely distributed and installed on the right side of the upper portion of the limiting frame. By means of the material pushing assembly, electronic components can be automatically pushed into a cutting and bending area, automatic reset is achieved after machining is completed, it is guaranteed that each electronic component can smoothly enter a machining position, and production efficiency is improved; besides, through the cutting assembly, the height and the position of a cutting knife can be accurately controlled, accurate cutting of the pins of the electronic components is ensured, the electronic components do not need to be taken down for additional cutting treatment, the operation steps and time are reduced, and the production efficiency is further improved.

The utility model discloses steel structural member bending equipment based on multi-angle positioning, which belongs to the technical field of steel structural member processing, and comprises a workbench, the upper surface of the workbench is rotatably connected with a transmission rod through a bearing, the upper end of the transmission rod is fixedly connected with a pressing wheel, one side of the pressing wheel is fixedly connected with a positioning component, and the positioning component is fixedly connected with the transmission rod. A driven gear is fixedly connected to the lower end of the transmission rod, a supporting plate is fixedly connected to the lower end of the interior of the workbench, a mounting groove is formed in one side of the upper surface of the supporting plate, and a hydraulic cylinder is fixedly connected to the interior of the mounting groove. By arranging the positioning assembly, it can be guaranteed that the steel structural part is located at the accurate and stable position before bending, the steel structural part is effectively prevented from shaking or displacing in the bending process, the reliability and success rate of bending machining are improved, by arranging the gear plate, the product quality problem caused by angle deviation is reduced, and the production efficiency is improved. And the consistency and the stability of the product quality are improved.

The invention provides a step planing and milling device for pavement engineering and a planing and milling machine, belongs to the field of pavement planing and milling, and aims to solve the problems that a planing and milling machine cannot carry out side surface step planing and milling at a joint of a new road and an old road, so that the joint is poor in bonding quality and easy to damage. Comprising a mounting base, a transverse adjusting unit, a swinging execution unit, a lateral planing and milling head and a spraying unit, through cooperative cooperation of the transverse adjusting unit and the swing executing unit, the position and angle of the lateral milling head in the horizontal direction (transverse direction) and the vertical direction (depth) can be accurately controlled, so that the lateral milling head can stably and regularly mill a step structure on the side face of an old road, and the problems that a traditional milling machine can only mill a whole plane, and the milling efficiency is low are solved. And high-quality joint treatment cannot be completed under special working conditions such as half-range passing and connection of new and old roads.